1. Professor, School of Civil Engineering, Shandong Univ., No. 17922, Jingshi Rd., Jinan 250061, China (corresponding author).
2. Lecturer, School of Civil Engineering, Shandong Univ., No. 17922, Jingshi Rd., Jinan 250061, China.
3. Engineer, Guilin Institute of Architectural Design and Research, No. 8, Chongshan Rd., Guilin 541000, China.
4. Master Candidate, School of Civil Engineering, Shandong Univ., No. 17922, Jingshi Rd., Jinan 250061, China.